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F. NI. BBUWN. Steam-Engine Governor.

N0,l59,299 Patented Feb.2,1875.

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HHIHHHHII UNITED STATES FREDRICK M. BROWN, OF WARREN, RHODE ISLAND.

IMPROVEMENT IN STEAMHENGINE GOVERNORS.

Specification forming part of Letters Patent No. 159,299, dated February2, 1575; application filed December 19,1874.

To all 'whom it may concern Be it known that I, FREDRICK M. BRowN, ofVarren, Bristol county, Rhode Island, have invented a new and usefulImprovement in Governors7 of which the following is a specication:

The invention will rst be fully described, and then pointed out in theclaim.

Figure l represents a side elevation of the governor, showing in dottedlines the position ot' theballs, arms, and levers and rods when thespeed is increased, and Fig. 2 is an edge view, partly in section.

Similar. let-ters of reference indicate correspondiiig parts.

This governor is contrived similar to some governors now in use, thepeculiar feature ot' it bein g the upward movement ot' the balls on thearms when the speed diminishes, and the downward movement when the speedincreases, and in the levers and rods by means ot' which these movementsare produced.

A is the base or stand, to which is attached a central stationaryspindle, B. C C are the ball-arms, hinged, at the top ofthe spindle, toa block fitted thereto. The joint is seen in Fig. 2, where D representsthe block, and E a nut on the eXtreme end of the spindle. D representsthe balls. These balls are bored out and fitted to the arms O' C', sothat they slide thereon. C U are levers attached to the blocks F F,which latter are on the arms, where they are rigidly fastened. G G aresmall clevises on the levers. D D are rods hinged to the clevises G G,and attached to the balls by means of the eyes J J, where they are madeadjustable by means of set-screws K. The clevises G .G are alsoadjustable on the levers C C. The levers are bent to an angle oftendegrees, more or less, with the slide N, to which the valve-lever isattached y by means'ot the projecting lug O, which lug works up and downin the slot P ot' the base. Q is an adjustable collar on the spindle tostop the upward motion of the balls.

No novelty is claimed for the slide and thiinble or manner ofcommunicating with the valve. The novelty consists in a device foraltering the plane of the rotating balls during their revolution,substantially in the manner described.

I do not confine myseltl to the particular manner shown, but design toemploy any mode or device by which the ball-arms are shortened andlengthened by the application of centrifugal force.

Having thus described my invention, I claim as new and desire to secureby Letters Patentrlhe combination, with arms O O', pivoted to thestationary spindle B, of crooked levers O C and sliding balls D D,connected by pivotcd rods D' D, as and for the purpose specified.

FREDRICK MONTROSE BROWN.

Witnesses:

T. B. Mosman, ALEX. F. ROBERTS.

